Hourly Weather in Alcatraz Heliport, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 km/h
Light
6 km/h
Calm
7 km/h
Calm
7 km/h
Calm
7 km/h
Calm
9 km/h
Light
15 km/h
Light
21 km/h
Breezy
26 km/h
Breezy
Humidity
92%
Extremely humid
92%
Extremely humid
92%
Extremely humid
84%
Extremely humid
77%
Extremely humid
69%
Humid
65%
Humid
66%
Humid
67%
Humid
Visibility
13 km
Good
13 km
Good
13 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
Clouds
14%
15%
14%
12%
4%
4%
3%
2%
2%
Dew point
12°
13°
14°
14°
14°
14°
13°
14°
13°
UV Index
0
0
1
2
4
6
8
8
8
Air quality
35
Good
35
Good
36
Good
36
Good
46
Good
46
Good
46
Good
47
Good
47
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
10.8 μg/m3
10.8 μg/m3
10.8 μg/m3
10.8 μg/m3
12.4 μg/m3
12.4 μg/m3
12.5 μg/m3
12.6 μg/m3
12.7 μg/m3
PM25
6.2 μg/m3
6.3 μg/m3
6.4 μg/m3
6.5 μg/m3
8.2 μg/m3
8.2 μg/m3
8.3 μg/m3
8.4 μg/m3
8.4 μg/m3
NO2
2.8 ppb
2.4 ppb
2 ppb
2 ppb
2.4 ppb
2.5 ppb
2.3 ppb
2 ppb
1.8 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
19.8 ppb
20 ppb
20.1 ppb
20.3 ppb
22.9 ppb
22.7 ppb
22.6 ppb
22.4 ppb
22.3 ppb